We look at the division of 33042067 by 815 
The aim is to understand the frequency of 815 in 33042067.

Advancing to step 1:
815 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 815

Moving on to step 2:
815 goes into 33 0 times with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 815

Step 3:
The number 815 fits into 330 0 times, leaving a remainder of 330.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 330 after subtracting 0 from 330.
Grab the next digit (4) from the dividend, add it to 330, then carry on: 3304 / 815

Going ahead to step 4:
If we divide 3304 by 815, we get 4 and a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 3260 from 3304 to get 44.
Append the next digit (2) from the dividend to 44 and continue with: 442 / 815

On to step 5:
442 divided by 815 is 0 with a remainder of 442.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Deduct 0 from 442 and we're left with 442.
Bring next digit (0) of the dividend behind the 442 and repeat the process: 4420 / 815

Going ahead to step 6:
815 can be fit into 4420 5 times, resulting in a remainder of 345.
Write down 5 as next digit of the result. 
Result so far: 405.0
If we take 4075 away from 4420, we end up with 345.
Grab the next digit (6) from the dividend, add it to 345, then carry on: 3456 / 815

On to step 7:
815 can be fit into 3456 4 times, resulting in a remainder of 196.
Record the quotient 4 as the next digit in the result. 
Result so far: 4054.0
If we subtract 3260 from 3456, we get 196.
Grab the next digit (7) from the dividend, add it to 196, then carry on: 1967 / 815

Step 8:
815 can be fit into 1967 2 times, resulting in a remainder of 337.
Put 2 as the next digit of the answer. 
Result so far: 40542.0
The remainder is 337 after subtracting 1630 from 1967.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Step 9:
3370 divided by 815 is 4 with a remainder of 110.
The next digit of our result is 4. 
Result so far: 40542.4
Subtract 3260 from 3370 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
If we divide 1100 by 815, we get 1 and a remainder of 285.
Use 1 as the next digit of our solution. 
Result so far: 40542.41
Subtract 815 from 1100 to get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

On to step 11:
When dividing 2850 by 815, we get 3 with a remainder of 405.
The next digit of our result is 3. 
Result so far: 40542.413
Deduct 2445 from 2850 and we're left with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

On to step 12:
815 can be fit into 4050 4 times, resulting in a remainder of 790.
Use 4 as the next digit of our solution. 
Result so far: 40542.4134
The remainder is 790 after subtracting 3260 from 4050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Step 13:
7900 divided by 815 is 9 with a remainder of 565.
Write down 9 as next digit of the result. 
Result so far: 40542.41349
Deduct 7335 from 7900 and we're left with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

On to step 14:
815 can be fit into 5650 6 times, resulting in a remainder of 760.
The next digit of our result is 6. 
Result so far: 40542.413496
The remainder is 760 after subtracting 4890 from 5650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

On to step 15:
The number 815 fits into 7600 9 times, leaving a remainder of 265.
The next digit of our result is 9. 
Result so far: 40542.4134969
If we subtract 7335 from 7600, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Going ahead to step 16:
815 goes into 2650 3 times with a remainder of 205.
The next digit of our result is 3. 
Result so far: 40542.41349693
Subtracting 2445 from 2650 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

The quotient of the division is 40542.41349693, and the remainder is 2.05e-07.